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==Typical Signalment==

==Typical Signalment==

*==Description==  

==Description==  

An oesophageal stricture is an abnormal circumferential narrowing of the lumen secondary to severe oesophagitis. A deep wall injury results followed by healing by fibrosis. The most important causes are:

An oesophageal stricture is an abnormal circumferential narrowing of the lumen secondary to severe oesophagitis. A deep wall injury results followed by healing by fibrosis. The most important causes are:

*Chemical injury from swallowed substances  

*Chemical injury from swallowed substances